1Lookup Data Intelligence API
1Lookup Data Intelligence API 1Lookup is an enterprise-grade data intelligence and validation API designed for developers, SaaS platforms, and data teams that need reliable verification and enrichment of contact and web data. This API provides powerful tools to validate and analyze phone numbers, email addresses, IP addresses, domains, and websites with real-time intelligence. Core Capabilities:…
2 subscribers
9.2/10 popularity
1223 ms avg latency
100% success rate
17 endpoints
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the data below comes straight from the public marketplace listing.
1Lookup Data Intelligence API endpoints
| Method | Endpoint | Description |
|---|---|---|
| Validation APIs | ||
| POST |
Phone Validation /api/v1/phone |
Validate phone numbers and return carrier information, fraud risk signals, and verification recommendations. |
| POST |
Email Validation /api/v1/email |
Validates an email to determine syntax correctness, deliverability score, reputation, B2B indicators, business profile signals, and provides risk assessment with recommendations. |
| POST |
Spam Detection /api/v1/phone-spam |
Check if a phone number is associated with spam or scam activity and retrieve risk and classification insights. |
| POST |
Phone Scrub /api/v1/phone-scrub |
Classify and scrub phone numbers to capture Do Not Call (DNC) status, line type classification, and risk flags for compliance and outreach quality. |
| Lookup & Enrichment | ||
| POST |
IP Lookup /api/v1/ip |
Get geolocation, network, and threat intelligence for an IP address, including risk scoring and classification. |
| POST |
Reverse Phone Lookup /api/v1/reverse-phone-lookup |
Look up enriched contact information including name, address, email, and other available metadata using a phone number. |
| POST |
HLR Lookup /api/v1/hlr-lookup |
Real-time HLR (Home Location Register) lookup for international phone numbers. Returns connectivity status, roaming info, and carrier details. |
| POST |
MNP Lookup /api/v1/mnp-lookup |
Mobile Number Portability lookup. Returns porting status and current/original carrier information. |
| POST |
Number Type Lookup /api/v1/nt-lookup |
Classifies the number type (mobile, landline, VoIP, etc.) and provides validation information for a given phone number. |
| POST |
Mobile Finder /api/v1/mobile-finder |
Find a person's mobile number from a professional profile URL and/or work/personal email. |
| Enrichment & Data Append | ||
| POST |
Phone Append /api/v1/phone-append |
Append a phone number to a contact using first name, last name, and address details to enrich contact records with a valid phone number (if available). |
| POST |
Email Append /api/v1/email-append |
Append email addresses to contact records using provided name and address fields, enriching contact profiles with high‑confidence email matches. |
| POST |
Reverse Email Append /api/v1/reverse-email-append |
Append or enrich contact information using an email address. Returns enriched contact details based on the provided email. |
| POST |
Reverse IP Append /api/v1/reverse-ip-append |
Append contact and geolocation information using an IP address. Returns enriched data including geolocation, identity matches, ISP/organization info, and risk assessment. |
| Website & Domain Intelligence | ||
| POST |
Website Scraper /api/v1/website-scraper |
Scrape a website URL and return content in normalized Markdown format along with page metadata such as title, description, character count, and extracted links. |
| POST |
Domain SEO Intelligence /api/v1/domain-seo-intelligence |
Retrieve comprehensive SEO authority, backlink, traffic, and social metrics for a domain by aggregating data from Moz, Ahrefs, and Majestic. |
| POST |
Website Contacts Scraper /api/v1/website-contacts-scraper |
Extract public emails, phone numbers, and social profiles from a website domain. Returns structured contact info for outreach or enrichment. |
1Lookup Data Intelligence API pricing
| Plan | Price | Rate limit | Quotas |
|---|---|---|---|
| BASIC | Free | 30 / hour |
|
| PRO | $49 / month | 300 / hour |
|
| ULTRA Recommended | $199 / month | 1000 / hour |
|
| MEGA | $499 / month | 5000 / hour |
|
